xref: /freebsd/tools/tools/decioctl/decioctl.c (revision 069ac184)
1 /*-
2  * Copyright (c) 2005-2006,2016 John H. Baldwin <jhb@FreeBSD.org>
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23  * SUCH DAMAGE.
24  */
25 
26 #include <sys/cdefs.h>
27 #include <sys/ioccom.h>
28 #include <ctype.h>
29 #include <errno.h>
30 #include <limits.h>
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <sysdecode.h>
34 
35 static void
36 usage(char **av)
37 {
38 	fprintf(stderr, "%s: <ioctl> [ ... ]\n", av[0]);
39 	exit(1);
40 }
41 
42 int
43 main(int ac, char **av)
44 {
45 	unsigned long cmd;
46 	const char *name;
47 	char *cp;
48 	int group, i;
49 
50 	if (ac < 2)
51 		usage(av);
52 	printf("  command :  dir  group num  len name\n");
53 	for (i = 1; i < ac; i++) {
54 		errno = 0;
55 		cmd = strtoul(av[i], &cp, 0);
56 		if (*cp != '\0' || errno != 0) {
57 			fprintf(stderr, "Invalid integer: %s\n", av[i]);
58 			usage(av);
59 		}
60 		printf("0x%08lx: ", cmd);
61 		switch (cmd & IOC_DIRMASK) {
62 		case IOC_VOID:
63 			printf("VOID ");
64 			break;
65 		case IOC_OUT:
66 			printf("OUT  ");
67 			break;
68 		case IOC_IN:
69 			printf("IN   ");
70 			break;
71 		case IOC_INOUT:
72 			printf("INOUT");
73 			break;
74 		default:
75 			printf("%01lx ???", (cmd & IOC_DIRMASK) >> 29);
76 			break;
77 		}
78 		printf(" ");
79 		group = IOCGROUP(cmd);
80 		if (isprint(group))
81 			printf(" '%c' ", group);
82 		else
83 			printf(" 0x%02x", group);
84 		printf(" %3lu %4lu", cmd & 0xff, IOCPARM_LEN(cmd));
85 		name = sysdecode_ioctlname(cmd);
86 		if (name != NULL)
87 			printf(" %s", name);
88 		printf("\n");
89 	}
90 	return (0);
91 }
92